Finding the Fourth Proportional to 274,484,933.18, 378,791,929.58 and 149,038,157.15
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Solution
The fourth proportional to 274,484,933.18, 378,791,929.58 and 149,038,157.15 is: 205,674,134.73
Step by Step Solution
- Step 1: Write the proportion equation
274,484,933.18 : 378,791,929.58 = 149,038,157.15 : x - Step 2: Convert to fraction form
274,484,933.18/378,791,929.58 = 149,038,157.15/x - Step 3: Cross multiply
274,484,933.18x = 378,791,929.58 × 149,038,157.15 - Step 4: Simplify right side
274,484,933.18x = 56,454,451,126,677,096 - Step 5: Solve for x
x = 56,454,451,126,677,096/274,484,933.18 - Step 6: Final answer
x = 205,674,134.73
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.